Question

Is it possible (simple) to get the current database version number, increment it, and pass it to SQLiteOpenHelper’s constructor from within an activity rather then hard coding the version number like so?

Activity (called from onclick):

public void updatedb(){
    //pseudo-code next 2 comments
    //int incVersion = getCurrentDBVersion();<==question here
    //incVersion = incVersion + 1;
    DatabaseHandler dbincrement = new DatabaseHandler(this, incVersion);
}

SQLiteOpenHelper Extension:

public class DatabaseHandler extends SQLiteOpenHelper{
    public DatabaseHandler(Context context, int incVersion) {
        super(context, DATABASE_NAME, null, incVersion);
    }
}

Answer 1

Yes, use something like this to get the database version:

DatabaseHandler dh = new DatabaseHandler(this);
SQLiteDatabase db = dh.getWriteableDatabase();
int version = db.getVersion();
DatabaseHandler dhInc = new DatabaseHandler(this, version++);